Home / 15,114.17-20,851.58-8,739.59

Finding the Fourth Proportional to 15,114.17, 20,851.58 and 8,739.59

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Solution

The fourth proportional to 15,114.17, 20,851.58 and 8,739.59 is: 12,057.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,114.17 : 20,851.58 = 8,739.59 : x
  2. Step 2: Convert to fraction form
    15,114.17/20,851.58 = 8,739.59/x
  3. Step 3: Cross multiply
    15,114.17x = 20,851.58 × 8,739.59
  4. Step 4: Simplify right side
    15,114.17x = 182,234,216.35
  5. Step 5: Solve for x
    x = 182,234,216.35/15,114.17
  6. Step 6: Final answer
    x = 12,057.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.